Home / 121,285.62-181,727.30-73,756.94

Finding the Fourth Proportional to 121,285.62, 181,727.30 and 73,756.94

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Solution

The fourth proportional to 121,285.62, 181,727.30 and 73,756.94 is: 110,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,285.62 : 181,727.30 = 73,756.94 : x
  2. Step 2: Convert to fraction form
    121,285.62/181,727.30 = 73,756.94/x
  3. Step 3: Cross multiply
    121,285.62x = 181,727.30 × 73,756.94
  4. Step 4: Simplify right side
    121,285.62x = 13,403,649,562.46
  5. Step 5: Solve for x
    x = 13,403,649,562.46/121,285.62
  6. Step 6: Final answer
    x = 110,513.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.